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Constant force spring

The constant force spring consists of strip material, which has been shaped and pre-tensioned into a tightly wound roll. The spring is used in a linear movement and produces almost constant force throughout its deflection. Constant force springs can be fitted in a number of ways and extended partly or completely. There is practically no limit on extension speed and acceleration.

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  • All measurements are in mm

See "full-screen" models of the springs and download a PDF file of the designed compression, tension or torsion spring!

Lesjöfors configurator for compression, tension and torsion springs allows you to design a spring based on your demands. Our CAD configurator stretches from wire diameter 0,1mm up to 15mm.

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Cat.no t b s Di F Håltyp 3D CAD
1002 0,15 15 500 14 6,2 D
1004 0,15 20 500 14 8,4 H
1005 0,15 20 500 19 5,5 H
1006 0,2 15 700 19 9,3 D
1009 0,2 20 700 29 5,7 H
1011 0,2 25 700 29 7,1 H
1013 0,25 15 1000 33 6,1 D
1015 0,25 20 1000 33 8,1 H
1019 0,3 20 1000 42 9,8 H
8044 0,152 12,7 505 14,53 5,6 A
8045 0,152 15,88 505 14,53 7 A
8046 0,203 14,29 673 19,38 8,4 A